Sink



FIG. 1 is a front view of a design of a series relating to a sink;

FIG. 2 is a rear view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a perspective view thereof;

FIG. 8 is a top view of a design of a series relating to a sink;

FIG. 9 is a right view thereof;

FIG. 10 is a bottom side view thereof;

FIG. 11 is a left side view thereof;

FIG. 12 is a rear view thereof;

FIG. 13 is a front view thereof; and,

FIG. 14 is a perspective view thereof.

The broken line showing of a sink is for the purpose of illustrating environmental structure and forms no part of the claimed design. The broken line(s) which define the bounds of the claimed design form no part thereof. 

The ornamental designs for a sink, as shown and described in the accompanying drawings. 